This part has been discontinued. See the CSS-VEPR-QUADRAILhttp://www.carolinashooterssupply.com/CHAOS_CSS_Vepr_12_SHOTGUN_QUAD_RAIL_HANDGUARD_p/css-vepr-quadrail.htm

Made for the Vepr 12 shotgun.The Chaos Quad Rail System is manufactured to highest standards in the industry. MIL-STD-1913 rails are made from aircraft grade 6061 aluminum alloy.Hard coat military specification MIL-A-8625 or Type III non-reflective black. Weight: 12 oz.Hex Wrench needed is 7/64"Does not fit any of the Saiga 12 Shotguns.